The History section of that web site applauds the fact that ESSB enthusiasts have been able to push their 3 KHz bandwidth rigs to 4 KHz and beyond using external equalization, and it points out that the leading edge for EESB is now moving past 6 KHz in transmitted bandwidth thanks to some of the new SDR rigs. Here are a couple of illuminating and disturbing quotes:
"It's becoming more recognized that the improved fidelity of ESSB has signal-to-noise advantages over the old traditional forms of narrower SSB" "... with the decline of new amateur radio operators to populate the bands, the wider bandwidth necessary for high quality SSB is not as much of an issue as it was 10 or 20 years ago." One of the hams lauded in that section for his work with ESSB lived near me when I was still in Scottsdale, and you could hear his splatter as much as plus/minus 8 KHz when he was on the air with his buddies on 20m in the evening. He was a casual friend of mine so I mentioned it to him, and his dismissive answer was that he must be overdriving my rig ... even though I told him that I had checked for that by using a piece of wire for an antenna to keep his signal below S7. I often monitored those guys while I was doing work-related stuff on the computer. They constantly tweaked their equalizers and critiqued the sound of each other's modulation, but I never once heard any of them check to see how wide they were. I have no problem at all with people experimenting with ESSB as long as they avoid interference with other activity on the band, but promoting ESSB as a mainstream mode on the HF bands seems to me to be the same as advocating an across-the-board return to AM, complete with its power inefficiencies and waste of spectrum. I just don't get it. It's just another reason for me to stick with CW, I guess ... Dave AB7E Hector Padron wrote: > Some ones might be interested to read this: > > http://www.essb.us/index.html > > AD4C > > > "The difference between genius and stupidity is that genius has its limits". > -- Albert Einstein > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
